SorbetCafe
Terrarian
Video on youtube (there's an unedited playlist in description)
After around 80 hours of attempts, I managed to pull this off. Successful attempt was just shy of 8 hours, which was much faster than killing fishron with paper airplanes and the moon lord with a wooden bow. But, with the failures, it took longer than both of those combined. It's actually quite a bit more difficult than the title would suggest, since I added a few more challenges on top of that (no armor, minimal accessories, killing wyverns, typing the entirety of rap god into the chat during the fight).
Editing the Skeletor clips was fun.